Question: Who is the doctor of B. F. Skinner ?
Paraphrase: Who is the specialist of B. F. Skinner ?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P184 wd:Q213195 . ?sbj wdt:P31 wd:Q5 } 
Answer: Richard Herrnstein, William Kaye Estes